I am a member of Propertyroom web site and I have purchased from them as well.
I have checked Craigslist and in my area, there are maybe 2-3 people and they aren't worth the money.
I put together a Used scanner site and bought almost 50 scanner from different places,I tried to get permission to post a link here but was turned down, You gotta' be BIG MONEY if you want to post on RR, after months and months of trying to get customers to the site, I got fed up and closed it and sold all the scanners on eBay.
Without prmotions through a site like this, the google crawlers are poluted with False information and no one seems to be bothered to check out any site that's new.
So,........ if I thought promotion would go through I would be more then willing to try it again, But I know it is a waste of time especialy trying to get permission on here. I tried, and they will have None of it....
There are NO sites out there dedicated to Used Scanners.....NONE...... and that's a shame.